Engine oil & filter · normal duty
7,500 mi · 12,000 km
or every 12 mo · severe duty 3,000 mi · 5,000 km
Factory-recommended service schedule for the Chevrolet Silverado 1500 (T1) (2019 – 2024), by mileage and time, for normal and severe duty — read from the manufacturer's owner's manual and cited. Where an interval differs between this generation's engines, the range is shown with the per-engine breakdown. Severe-duty applies to short trips, towing, dusty or extreme-climate use.
Engine oil & filters 3
Fluids 5
| Service | Normal duty | Severe duty | Time | Source |
|---|---|---|---|---|
| Brake fluid flush | — | — | 60 mo | Verified[1][2] |
| Coolant flush | 150,000 mi · 240,000 km | — | 60 mo | Verified[1][2] |
| Rear Differential Fluid | 50,000 mi · 80,000 km | 30,000 mi · 48,000 km | — | Verified[1][2] |
| Transfer-case fluid | 50,000 mi · 80,000 km | 30,000 mi · 48,000 km | — | Verified[1][2] |
| Transmission At Fluid | 97,500 mi · 156,000 km | 45,000 mi · 72,000 km | — | Verified[1][2] |
Tune-up & drive 2
Inspections & rotations 4
Other 1
Gen-wide schedule from the manufacturer's documentation — some items vary by engine (shown above) or market. Full oil & fluid capacities: fluids & capacities →
Frequently asked
- How often should the Chevrolet Silverado 1500 (T1) have an oil change?
- The factory schedule calls for an engine-oil & filter change every 7,500 mi · 12,000 km or 12 mo under normal driving, and every 3,000 mi · 5,000 km under severe duty, verified from the owner's manual.
- Normal vs severe service — which applies to me?
- Severe (or 'special') duty applies to short trips, extreme cold/heat, dusty or stop-and-go driving, towing, or extended idling — most real-world use is closer to severe than many owners assume. When in doubt, follow the severe-duty intervals.
Sources
- Chevrolet Silverado 1500 (T1) Service ManualRetrieved 2026-05-19
- GM factory engine-oil specificationPer-engine factory oil capacities (with filter) from GM service documentation.Retrieved 2026-05-21